That build looks pretty good if you want to run After Effects or Premier Pro and should work great for 3d/vfx. But the thing you might want to look into is your GPU (Graphic Processing Unit) or Video Card. That card is really geared towards playing video games on high. Being that as it may if you want this computer for both games and editing that GPU is perfect, but if you want this computer just for editing I would look into getting a Quadro. They run very expensive for a decent one so I would stick with your 980, also the CPU liquid cooler is a set it and forget it kind of thing and you will never need to change the liquid in it which is a good thing. One more thing if you like white cases you should check out this white case that I have, its one of the best and most efficient cases I have ever built a computer with. It is a full tower which is also you need to take into consideration. Also one last thing do not forget to get an OS (operating system).
Nvida Quadro GPU's: http://www.nvidia.com/object/media-and-entertainment.html